/**
 * Copyright (C), 2020, Y2 T205
 * FileName: CartController
 * Author: Lenovo
 * Date: 2020-05-26 21:29
 * Description:
 * History:
 * <author> <time> <version> <desc>
 * 作者姓名 修改时间 版本号 描述
 */


package com.atguigu.gulimall.cart.controller;


import com.atguigu.common.constant.AuthServerConstant;
import com.atguigu.gulimall.cart.interceptor.CartInterceptor;
import com.atguigu.gulimall.cart.service.CartService;
import com.atguigu.gulimall.cart.vo.Cart;
import com.atguigu.gulimall.cart.vo.CartItem;
import com.atguigu.gulimall.cart.vo.UserInfoTo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import sun.security.pkcs11.Secmod;

import javax.servlet.http.HttpSession;
import java.util.List;
import java.util.concurrent.ExecutionException;

/**
 * 〈一句话功能简述〉<br>
 * 〈〉
 *
 * @author Lenovo
 * @create 2020-05-26
 * @since 1.0.0
 */
@Controller
public class CartController {


//    浏览器有一个cookie：user-key :标识用户，一个月过期
//    如果第一次使用购物车功能，都会给一个临时的用户身份
//    浏览去以后保存，每次访问都会带上这个cookie
//    登录：session 有
//    没有登录： 按照cookie 里面带来的user-key
//    如果没有临时用户，帮忙创建一个

    @Autowired
    CartService cartService;


    /*获取购物车中选中的商品的集合对象信息*/
    @GetMapping("/currentUserCartItems")
    @ResponseBody
    public List<CartItem> getCurrentUserCartItems(){
        return cartService.getUserCartItems();
    }

    @GetMapping("/deleteItem")
    public String deleteItem(@RequestParam("skuId")Long skuId){
        cartService.deleteItem(skuId);
        return "redirect:http://cart.gulimall.com/cart.html";
    }


    @GetMapping("/countItem")
    public String countItem(@RequestParam("skuId")Long skuId,@RequestParam("num")Integer num){
        cartService.changeItemCount(skuId,num);
        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/checkItem")
    public String checkItem(@RequestParam("skuId")Long skuId,@RequestParam("check") Integer check){
        cartService.checkItem(skuId,check);

        return "redirect:http://cart.gulimall.com/cart.html";
    }

    @GetMapping("/cart.html")
    public String cartListPage(Model model) throws ExecutionException, InterruptedException {
//       快速得到用户的信息 id user-key
       /* UserInfoTo userInfoTo = CartInterceptor.threadLocal.get();
        System.out.println(userInfoTo);*/
//       不用折磨获取信息，通过threadlocal可以获取信息
      Cart cart =  cartService.getCart();
      model.addAttribute("cart",cart);
        return "cartList";
    }

    /*添加商品到购物车*/
    @GetMapping("/addToCart")
    public String addToCart(@RequestParam("skuId") Long skuId, @RequestParam("num")Integer num, RedirectAttributes ra) throws ExecutionException, InterruptedException {

     /*  CartItem cartItem= cartService.addToCart(skuId,num);
       model.addAttribute("item",cartItem);*/

//  和 addtoCartSucessPage一起   解决刷新购买成功页面不断的添加额问题
        cartService.addToCart(skuId,num);
       // model.addAttribute("skuId",skuId);
        ra.addAttribute("skuId",skuId);
        return "redirect:http://cart.gulimall.com/addToCartSuccess.html";

    }
//    跳转到成功也
    @GetMapping("addToCartSuccess.html")
    public String addToCartSuccessPage(@RequestParam("skuId") Long skuId,Model model){
//        重定向到成功页面，再次查询购物车的数据

       CartItem item= cartService.getCartItem(skuId);
       model.addAttribute("item",item);
       return "success";
    }


}
